| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical waveguide material which is excellent in molecular weight controllability, solvent resistance, heat resistance and moisture resistance, and shows a low optical transmission loss and low birefringence with molecular weight-controlled stable quality. SOLUTION: An optical waveguide is produced by using a polymer obtained by using a silsesquioxane derivative represented by formula (1-0). In the formula (1-0): R<SP>0</SP>independently represents hydrogen, alkyl having 1 to 40 carbon atoms, aryl in which optional hydrogen may be replaced by halogen, or alkyl having 1 to 20 carbon atoms, or arylalkyl in which optional hydrogen in the aryl may be replaced by halogen or alkyl having 1 to 20 carbon atoms; and Y is a group represented by the formula (a) or the formula (b). COPYRIGHT: (C)2007,JPO&INPIT |
